Conversation Between FordIVTteam and mgnelson12

Hello. I have a 2011 F-250 and have been trying to update my Sync to ver. 4.6. I saw on the thread that you might be able to help. I have downloaded the software, formatted a 2 GB USB drive and placed the unzipped files on that drive. Every time I try to do the update, the radio never seems to recognize the USB drive as containing software. Can you help? Thank you,
Matt Nelson